package com.dems.admin.config;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringContextUtil implements ApplicationContextAware {
  
    // Spring应用上下文环境  
    private static ApplicationContext applicationContext;
  
    /** 
     * 实现ApplicationContextAware接口的回调方法。设置上下文环境 
     *  
     * @param applicationContext 
     */  
    public void setApplicationContext(ApplicationContext applicationContext) {  
        SpringContextUtil.applicationContext = applicationContext;  
    }  
  
    /** 
     * @return ApplicationContext 
     */  
    public static ApplicationContext getApplicationContext() {  
        return applicationContext;  
    }  
  
    /** 
     * 获取对象 
     *  
     * @param name 
     * @return Object
     * @throws BeansException 
     */  
    public static Object getBean(String name) throws BeansException {
        return applicationContext.getBean(name);  
    }
    /**
     * 获取对象
     *
     * @param cls
     * @return Object
     * @throws BeansException
     */
    public static Object getBean(Class<?> cls) throws BeansException {
        return applicationContext.getBean(cls);
    }
}